CVE-2023-45811

Prototype pollution vulnerability leading to arbitrary code execution in synchrony deobfuscator

Published Oct 17, 2023 CVSS 3.1 · 8.2 High EPSS < 1% KEV · Not listed
Description
Synchrony deobfuscator is a javascript cleaner & deobfuscator. A `__proto__` pollution vulnerability exists in versions before v2.4.4. Successful exploitation could lead to arbitrary code execution. A `__proto__` pollution vulnerability exists in the `LiteralMap` transformer allowing crafted input to modify properties in the Object prototype. A fix has been released in `deobfuscator@2.4.4`. Users are advised to upgrade. Users unable to upgrade should launch node with the [--disable-proto=delete][disable-proto] or [--disable-proto=throw][disable-proto] flags

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2023-2761 Synchrony deobfuscator is a javascript cleaner & deobfuscator. A `__proto__` pollution vulnerability exists in versions before v2.4.4. Successful exploitation could lead to arbitrary code execution. A `__proto__` pollution vulnerability exists in the `LiteralMap` transformer allowing crafted input to modify properties in the Object prototype. A fix has been released in `deobfuscator@2.4.4`. Users are advised to upgrade. Users unable to upgrade should launch node with the [--disable-proto=delete][disable-proto] or [--disable-proto=throw][disable-proto] flags
Github GHSA Github GHSA GHSA-jg82-xh3w-rhxx Synchrony deobfuscator prototype pollution vulnerability leading to arbitrary code execution
History
Type Values Removed Values Added
CPEs cpe:2.3:a:relative:synchrony:*:*:*:*:*:nodejs:*:* cpe:2.3:a:relative:synchrony:*:*:*:*:*:node.js:*:*
Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Sep 13, 2024, 3:29 PM
Reserved
Oct 13, 2023, 12:00 PM
Status
Analyzed
Published
Oct 17, 2023, 11:15 PM
Modified
Jun 17, 2026, 6:29 AM